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GunMod's Radiance Light System 2.1

by GunMod Posted 5th Nov 2005 at 4:32 AM - Updated 16th May 2009 at 10:18 AM by Numenor : Updated info and links
728 Comments / replies (Who?) - 25 Feedback Posts
Picked Upload! This is a picked upload! It showcases some of the best talent and creativity available on MTS and in the community.
EDIT by MTS2 Staff

Gunmod, the creator of the Radiance Light System, has quit modding long ago and therefore the development of the Radiance has been discontinued.
However, other people have continued GunMod's work, or have created alternative lighting systems.

Here are some useful links to various existing Light Systems (thanks Niol for collecting and providing them); the Radiance version 2.4 can also be installed automatically using the SCRIPTORIUM (old versions 2.1 to 2.3 can only be installed by hand).
  • Radiance Light System 2.1 by GunMod @ MTS2 (LINK)
  • Radiance Light System 2.2 BETA RC1 by GunMod & Chocolate Pi @ MTS2 (LINK)
  • GunMod's Radiance Light System 2.3 for all EP/SP by dDefinder @ MTS2 (LINK)
  • GunMod's Radiance Light System 2.4 for all EP/SP by dDefinder @ MTS2 (LINK)
  • Lighting Mod by spookymuffin @ InSIM (LINK)
  • Aaron's Ambiance Mod by stargazer @ GaySimsClub2 (LINK)

And here are some links about modding the lighting.txt game file:

If interested, please visit the provided links and read the instructions, specifications and compatibility of each mod from its own thread

(Original GunMod's post following)

Fixed light not traveling through arches. Thanks Daan1302
Fixed inside portal coloring. Was too colorful.
Fixed outside light spill. Objects light up more when near window with lamp/light.
Updated to Include all EP's
Auto installs for all EP's
Includes 4 Times of day for Downtown and University (if you have the EP)
This means you can party in the morning, daytime, evening and night.
So Nightlife isn't just "Night Life"

Included a manual install option for PC and MAC users. (seperate download)

Install Procedures:

Download or

For the auto install, extract the .exe file to a temp folder, run the exe, then during the install make sure the path is C:\Program Files\EA Games

For the manual install: Extract zip file into: C:\Program Files\EA Games
Allow it to overwrite

To Uninstall:

Extract to: C:\Program Files\EA Games
Allow it to overwrite.

Notes: Because a lot of the default lots use the broken Maxis Diffuser light,
you will want to go in and change the lighting esp. in Downtown lots in Nightlife.
Sorry about this, but it's not my fault Maxis chose to use the broken one

This was made for ENGLISH version installs of the Sims 2.

If you have a NON ENGLISH version of the Sims 2:
Extract the manual version to a temp folder.
Copy the lighting.txt file found in:
The Sims 2\TSData\Res\Lights

to [email protected]\TSData\Res\Lights

Where [email protected] is whatever The Sims 2 folder is called

Next copy the Lighting.txt and downtown_lots.txt files found in:
The Sims 2 Nightlife\TSData\Res\Lights

to [email protected]\TSData\Res\Lights

Where [email protected] is the folder you have for The Sims 2 Nightlife.
Note these are both in Program Files\EA Games

So make sure that if you own a NON ENGLISH version, that the install
program points to your Sims 2 folder.

Works with All or no Expansion Packs.
If you do not own Nightlife it will still create a harmless folder called:
C:\Program Files\EA Games\The Sims 2 Nightlife.
If you do NOT own Nightlife, this folder can be safely deleted after the install.

Do NOT use Smart Lights 2 with this!
THis version overwrites any previous version.

You must have the expansion or stuff packs listed below installed to use this custom content. Please see the post text for any exceptions.

Key: - File was updated after upload was posted
Filename - Tip: You can click the magnifying glass to see the archive contents Size Downloads Date

Size: 31.6 KB · Downloads: 31,038 · 6th Nov 2005
31.6 KB 31,038 6th Nov 2005

Size: 148.7 KB · Downloads: 55,655 · 6th Nov 2005
148.7 KB 55,655 6th Nov 2005

Size: 32.7 KB · Downloads: 34,699 · 6th Nov 2005
32.7 KB 34,699 6th Nov 2005
Don't forget to Thank the creator after downloading! Use the Thanks button located above the screenshots above.
Basic Download and Install Instructions:

1. Download: Click the download link to save the .rar or .zip file(s) to your computer.

2. Extract the zip, rar, or 7z file.

3. Place in Downloads Folder: Cut and paste the .package file(s) into your Downloads folder:
  • Origin (Ultimate Collection): Users\(Current User Account)\Documents\EA Games\The Sims™ 2 Ultimate Collection\Downloads\
  • Non-Origin, Windows Vista/7/8/10: Users\(Current User Account)\Documents\EA Games\The Sims 2\Downloads\
  • Non-Origin, Windows XP: Documents and Settings\(Current User Account)\My Documents\EA Games\The Sims 2\Downloads\
  • Mac: Users\(Current User Account)\Documents\EA Games\The Sims 2\Downloads
  • Mac x64: /Library/Containers/com.aspyr.sims2.appstore/Data/Library/Application Support/Aspyr/The Sims 2/Downloads
Need more information?
728 Comments / Replies (Who?) - 708 Feedback Posts, 6 Thanks Posts
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Lab Assistant
#2 Old 5th Nov 2005 at 4:41 AM
This looks very good... I am glad that I am first to thank you and tell you that this will find a place in my games.

Birman Kat aka mal1958

A fantastic wife, a fantastic son, My computer, and The SIMS 2. Life is good!

"I prefer to be true to myself, even at the hazard of incurring the ridicule of others, rather than to be false, and to incur my own abhorrence." Frederick Douglass
Test Subject
#3 Old 5th Nov 2005 at 4:42 AM
As I said before, and will say again... Excellent work. Really makes the game more enjoyable and realistic. This will be a permanent change to my game. Thanks so much for the lighting effects that makes the Sims2 game so much better.
Test Subject
#4 Old 5th Nov 2005 at 4:55 AM
Great work. I love the first version, and by the looks of things the finished version is the icing on the cake. Thanks GunMod!
Test Subject
#5 Old 5th Nov 2005 at 5:01 AM
wow! wow! wow! OMG this is soo sweet! This is like wow i'm speach great job! :salute:

BTW i have a question will there be a hack coming out that will change the sky color?..just wondering

THX again this is sooooooooooo awesome!!!
Field Researcher
Original Poster
#6 Old 5th Nov 2005 at 5:06 AM
Originally Posted by starman4016
wow! wow! wow! OMG this is soo sweet! This is like wow i'm speach great job! :salute:

BTW i have a question will there be a hack coming out that will change the sky color?..just wondering

THX again this is sooooooooooo awesome!!!

Glad to make you happy
This is answered in the readme.
In short, no. The sky only supports 2 modes so it would
be back to two times of day and it would require reprogramming the
pixel shaders, which is a ton of work.

- GunMod
Freelance Game/Software Designer
GunMod's Forums

Tip to Never Get Lost: Remember, No Matter Where You Go, There You Are!
Test Subject
#7 Old 5th Nov 2005 at 5:06 AM
ohh i wanted 2 see this mod soo bad that i only scimmed the read me
Test Subject
#8 Old 5th Nov 2005 at 5:14 AM Last edited by skarlett1 : 5th Nov 2005 at 5:30 AM.
Thank you so much for this new feature! The first one worked fantastic but I will install this one. First I was confused as to what I should do with the original file but then logic kicked in and I realized the .exe would have been configured to overwrite it. Thanks again, you're great!
Lab Assistant
#9 Old 5th Nov 2005 at 5:39 AM
All I can say is....I'm speachless. Wow This is awesome. I love making sim movies, You know how awesome your lighting mods are going to be for movies. Think about horror movies, brilliant darkness. I love it.

Thnk you heaps.
Lab Assistant
#10 Old 5th Nov 2005 at 6:11 AM
Yay, I've been waiting for this to come out =) this mod really brings the game to life and helps set the right mood. Candle lit dinners can actually look candle lit >.<
Field Researcher
#11 Old 5th Nov 2005 at 6:14 AM
I had the original one installed and it made quite an impact on the game's realism. The dawn & dusk were quite a nice improvement instead of it just going from daylight to dark (or vice versa) in a few seconds. Not to mention the lighting effect on my lots! Stuck this one (unpacking the BackUpOrg file first) and an off to load the game.

BTW: Not that it's of any relevance, but I think I gave you Thanks #666.

Like a flea circus at a dog show!
Test Subject
#12 Old 5th Nov 2005 at 6:27 AM
Thanks! Can't wait to try this out, the Screenshots are amazing!
Field Researcher
#13 Old 5th Nov 2005 at 6:52 AM
Brilliant, thanks heaps.
Lab Assistant
#14 Old 5th Nov 2005 at 7:19 AM
Aw, thanks; It feels good to have helped out it some way! Thanks for mentioning me in the readme, this looks fantastic!
Lab Assistant
#15 Old 5th Nov 2005 at 7:37 AM
This looks very good, I don't usually download mods that alter the game so dramatically, but I know I'd regret passing this up

I've been waiting all this time to be something I can't define.
MTS2 Hot Pepper
#16 Old 5th Nov 2005 at 8:08 AM
Im afraid to install your hacks - cause the previous version made all my neighbourhood map "bloody covered" :D

Currently playing Sims 4 full collection. (and fixing my mods folder)
Lab Assistant
#17 Old 5th Nov 2005 at 8:25 AM
like carrot, i dont usually download mods or anything else really, but this is probobly the most excellent thing ive seen on this site. thanks. quick question though. in version one, the light bleeds from one room to adjacent rooms even through archways, but not in this version. why?
#18 Old 5th Nov 2005 at 8:29 AM
omg! this looks sweet! just one question/problem, i have a pretty basic computer and it's only got the stock graphics card and so forth, so will i get a slightly dodgy effect or will it still look like the screenshots?
Lab Assistant
#19 Old 5th Nov 2005 at 8:34 AM
Just wanted to say that I'm very happy with this, I haven't had a chance to test it thoroughly, but from what I've seen so far, the game looks a lot better and performance hasn't been affected at all. Thank you very much for this ^_^

I've been waiting all this time to be something I can't define.
Lab Assistant
#20 Old 5th Nov 2005 at 9:19 AM
ok i had the same thing happen to me that happend to Ailias ... the neighborhood had Red all over it, andthe roads dissapeared ... That part i liked, the no-roads looked neat in my midevil neighborhoods. but the red threw me off a bit. Im going to try this anyway, i Loved the way the houses looked when i loaded a lot. Didnt have the red then, only in neighborhood view. . Also ... i had a hack to view the whole neighborhood, dont know if the light mod combined with that would make the weird red glitch. Anyway ... i REALLY hope this one works on my game ... looks Great & Thanks for your hard work!

"The way to be safe is never to be secure." -Benjamin Franklin
Lab Assistant
#21 Old 5th Nov 2005 at 9:33 AM
It works beautifully in my game. Thanks!!!
#22 Old 5th Nov 2005 at 9:48 AM
Holy crap. this is one hell of a mod! Time for realistic fps style shadows and specular highlights in the sims! I nominate this mod of the year! I have a medium end pc, so I'll test it and see if i experience any dire slow downs.

Lab Assistant
#23 Old 5th Nov 2005 at 10:07 AM
looks ace, ill download this one now i have the first one and this one is the completed file and looks awesome.
#24 Old 5th Nov 2005 at 10:10 AM
Ok, after testing it out for a bit, i have to say that this mod is fantastic. No slow downs either. When my sim opened up the fridge to have a late night snack, the fridge lit up my kitchen and it was beautifully realistic. Oh also, the new NL neon lights look amazing! I'm just astonished at how nice the lighting in my game is now. I'm sure this took forever so thank you so much.

Lab Assistant
#25 Old 5th Nov 2005 at 10:16 AM
do i need to remove the first version? or do i leave that installed? i want to make sure just incase
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